AISI H11 datasheet,AISI H11 chemical,AISI H11 heat treatment
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AISI H11
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Specifications AISI H11 Datasheet, AISI H11 Chemical, AISI H11 Properties from Steelmelting (ESR refined), Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic flaw detection test, Cold working or Machined. All of these materials conform to Military standard, nuclear power. 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
Official Test Certification: issued by TUV - SGS BV

TECHNICAL SPECIFICATION DATASHEET - AISI H11
MATERIAL CATEGORY - Hot working tool steel
MATERIAL SPECIFICATIONS - ASTM A681 -2004
CHEMICAL COMPOSITION (WEIGHT - %)
C (%):     0.30 ~ 0.40
Si (%):     0.80 ~ 1.20
Mn (%):   0.20 ~ 0.40
P (%)≤:   0.030
S (%)≤:   0.030
Cr (%):    4.75 ~ 5.50
Mo (%):   1.25 ~ 1.75
W (%):    -
V (%):     0.30 ~ 0.50
HEAT TREATMENT PRACTICE AND HARDNESS
Hot working tenperature ℃ /Starting: 1070~1150
Hot working tenperature ℃ /Ending: 900
Annealing temperature ℃: 840~900
Hardness after annealing ≤HBW: 192~229
Quenching temperature ℃: 990~1020
Cooling medium: air 
Tempering temperature ℃: 540~650
Hardness value after tempered /HRC: 54~38

MELTING PROCESS 
This alloy is generally smelt in electric arc furnace  (EAF ) or IFF + VD, LF + Electroslag remelting (ESR).
For a purpose of higher quality, it should be smelt via technology of vacuum refining.
TYPICAL APPLICATIONS
Alloy tool steel is widely used to produce the cutting tool, cold/heat distortion mould and measuring implements,
and further to manufacture the piston, valve, valve seat of fuel pump of diesel engine.
Cutting tools
Mechanical parts 
Air hammer tools
Piercing tools
HEAT TREATTMENT PRACTICE
The preheating of measuring and cutting
tool steel is spheroidizing annealing, final heat treatment is quenching + low temperature tempering and hardness after heat treatment can reach 60~65HRC. When heat treat tool steel grades consideration should be given to hardening temperature, including ratio of heating, cooling and soaking times which will differ due to factors such as the shape and size of each chemical component. Other considerations during heat treatment include the type of furnace, quenching medium and work piece transfer facilities.
FEATURES AND CLASSIFICATIONS
Hot-work die divides into several main types, such as hammer forging, die forging, extrusion and die casting, including hot forging die, press machine forging die, stamping die, hot-extrusion die, metal die-casting mould. Heat distortion mould not only supports huge mechanical stress, but also thermal stress during working repeatedly. Hot-work die steel should have not only high hardness, red hardness, abrasion resistance, toughness, but also have excellent high temperature strength, thermal fatigue stability, thermal conductivity, upper hardenability for guaranteeing the whole cross section with consistent mechanical property.
PRODUCT PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 450mm
Square bar / Flat bar: 3mm to 610mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T20 - 300mm X W50 - 1000mm X L1000-12000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.  
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers, E-mail: sales@ccsteels.com.

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